7 8 1 64 July 8, 2019 16 32 64 128 7 2x 1 )-( 3x 8 )= 64 7 2х 1 )-( 3х 8 )= 64 7 8 x 64 1 7 8 times 64 1 7 64 vs 1 8 7 64 vs 1 8 amsteel 7 64 vs 1 8 drill bit
